Description:Brand new52mm GaugeDigital Volt & Digital LED Air Fuel RatioAFR Readout: Between 20-10 AFRVolt Reads Between 8 - 16 VoltsBlue Digital Read outSmoke LensUniversally Fit on all Imported and Domestic CarsMounting kit and Hardware IncludedInstallation InstructionsEasy InstallationFits 2" or 52mm Diameter Gauge PodsWhen powered on digital gauge will read the voltage for 1 minute and switch to Air Fuel Ratio.It will only switch back to voltage if there is a decrease or increase.Package included:1 x Air Fuel AFR Gauge